Specialization {hierarchical}

Typeabstract: Booleantrans: Boolean

Associationunique: Booleanessential: Boolean

target

Integer <<Singleton>>

String <<Singleton>> UserType

owner

ancestor

descendant

...

IntegerValue StringValue UserObject...Object

Linkowner

target

ModelItemname: String

InstanceItem

instanceOf

value: Integer value: String

Separate tables

One table

Separate tables

Joined tables

createdLongTA

published:DateAccessed

VersionedObject

Transaction

ShortTAnext

container

Separate tablesSeparate tables

AdhocTAManagedTA

type: MType = {R,M,D}Joined tables

One table

vt

Specialization {hierarchical}

Typeabstract: Boolean

Associationunique: Booleantarget

Integer <<Singleton>>

String <<Singleton>> UserType

owner

ancestor

descendant

ModelItemname: String

Separate tables

One table ...

IntegerValue StringValue UserObject...Object

Linkowner

target

ModelItemname: String

InstanceItem

value: Integer value: String

Separate tables

Joined tables

instanceOf

UserObjectLink

createdLongTA

published:DateAccessed

VersionedObject

Transaction

ShortTAnext

container

Separate tablesSeparate tables

type: AType

vt

UserObjectLink

createdLongTA

published:DateAccessed

VersionedObject

Transaction

ShortTAnext

container

Separate tablesSeparate tables

AdhocTAManagedTA

type: ATypeJoined tables

One table

vt

Specialization {hierarchical}

Typeabstract: Booleantrans: Boolean

Associationunique: Booleanessential: Boolean

target

Integer <<Singleton>>

String <<Singleton>> UserType

owner

ancestor

descendant

ModelItemname: String

Separate tables

One table ...